Database - Introduction to SQL - Discussion

What is the purpose of the SQL and how to use it in the daily life?

A data structure is a specialized format for organizing and storing data. General data structure types include the array, the file, the record, the table, the tree, and so on. Any data structure is designed to organize data to suit a specific purpose so that it can be accessed and worked with in appropriate ways. In computer programming, a data structure may be selected or designed to store data for the purpose of working on it with various algorithms.

What does "To define the data structures" mean?

Very clean and clear definition.

SQL stands for "Structured Query Language", it is used to define the data, control the data and access that data. It uses three sub-languages for doing that:

1. DDL (Data Definition Language).
2. DML (Data Manipulation Language).
3. DCL (Data Control Language).

Yeah, Sql is used to create database and manipulate database using DDL and DML operations. This is also used for structuring database.

SQL is a strucured query language is used to manage the database.

If you want to work with database then we need sql language. It is the only language to communicate with any type of database, so sql is called as common language interface.